如何替换除颜色编码字符串以外的散列标签

import re

def replace_hash_tags(input_string, replacement):
    # 匹配颜色编码的正则表达式
    color_pattern = r"#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})"
    
    # 提取颜色编码
    color_codes = re.findall(color_pattern, input_string)
    
    # 替换颜色编码为指定标签
    for color_code in color_codes:
        input_string = input_string.replace(color_code, replacement)
    
    return input_string

# 示例用法
input_string = "This is a #FF0000 red color tag and a #00FF00 green color tag."
replacement = "TAG"
output_string = replace_hash_tags(input_string, replacement)
print(output_string)